Information Systems Security Engineer (ISSE) at Peraton
Washington, DC
$104,000–$166,000from the description
Jun 29, 2026
Washington, DC
Jul 21, 2026
What this job asks for AI summary
An onsite security engineering role supporting a federal customer in Washington, D.C., focused on designing and maintaining enterprise security architectures, managing vulnerabilities, and hardening Windows and Linux environments alongside cloud and containerized platforms. The work spans the full system development lifecycle — from requirements and design reviews through accreditation, incident response, and automation — and also involves administering privileged access management tools such as CyberArk. Suited to an experienced ISSE comfortable leading projects and briefing leadership.
Senior level · 5+ years · Washington-Arlington-Alexandria, DC-VA-MD-WV · TS/SCI clearance · Full-time
“or” means any one of them counts — you don't need all of them.
We read this from the posting text with AI. Skim the description below before ruling yourself out.
How this req sits in the market our data
Rare in this occupation — lead with these, and say what you built with them.
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $152,225 (middle half $125,286–$177,673). This posting is about at that midpoint.
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Jul 28, 2026. It is a model, not a headcount.
Why we read it this way (10)
The role title is 'Information Systems Security Engineer (ISSE)' with no seniority level in the title; however, the qualifications require leading projects, mentoring junior ISSEs, and presenting to leadership — supporting a Senior classification.
Degree requirement: the JD offers 5 yrs with BS, 3 yrs with MS, or 9 yrs in lieu of a degree — equivalent experience is explicitly accepted, so the degree requirement is set to None.
Total years minimum is set to 5 (the lowest stated threshold, paired with a BS/BA).
Ubuntu Linux is listed as an alternative to Red Hat Enterprise Linux since both are named as Linux variants in the same requirement.
AWS and Azure are listed together as cloud security requirements; AWS is used as the primary with Azure as an alternative since the JD treats them as a paired cloud security background.
The DoD 8570.1-M IAT Level III certification requirement names SecurityX (CASP+), GCIH, CISA, and CISSP as acceptable options; CISSP is used as the primary (most common) with the others as alternatives.
NIST SP 800-161 and Common Criteria appear in the qualifications block but are framed with 'deep understanding of' alongside FedRAMP and RMF — they are treated as required knowledge areas. However, they are less operationally concrete than the tool/platform requirements and are flagged as preferred to avoid over-gating.
The alternative occupation code 15-1299 is noted because the ISSE role blends security engineering (design, architecture, accreditation) with security analysis; 15-1212 is the best fit given the dominant focus on security posture, compliance, and vulnerability management.
Ignored 1 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): NIST SP 800-161.
Requires a TS/SCI clearance — the cleared population is a small fraction of this occupation, so the real candidate pool is materially smaller than the estimate below, which does not model clearance.
Read the full posting
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